Stapling-machine.



H. WEBER.

STAPLING MACHINE.

APPLICATION FILED MAY 7, 1914.

Patented Mar. 23, 1 915.

2 SHEETS-SHEET 1.

S 60.. PHOTO LITHO., WASHINGTON. D. L

H. WEBER.

STAPLING MACHINE.

APPLICATION FILED MAY '1, 1914.

1,132,990. Patented Mar. 23, 1915.

2 SHEETSSHEET 2.

J g. Q.

THE NORRIS PETERS CO.. PHOTO-LITHQ. WASHINGTON. By C.

- elevation in HENRY WEBER,

OF CHICAGO, ILLINOIS, ASSIGNOB TO LATI-IAM F GHIO'AGO ILLINOIS, .A CORIOB-ATION OF ILLINOIS. l

MACHINERY conrlenv,

STAPLIZNG-MACHINE.

Specification of Letters Patent. Patented Mar, 23, 1915- Application filed. May 7, 1914. Serial No. 836,856. I

To all whom it may concern: y

Be it known that I, HENRY WEBER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in stapling-Machines, of which the following is a specification. v

'My invention relates to stapling machines and has for its primary object the provision of an improved stapling machine which shall have improved means for reciprocating the anvil thereof into and out of the path of movement of the driver.

With the above and other objects in view, this invention consists substantially in the combination, arrangement and construction of parts all as hereinafter described, shown in the accompanying drawings, which form a part of this specification and illustrate the preferred embodiment of my invention, and more particularly set forth in the subj oined claims. i

In the drawings: Figure 1 is a front elevation of a stapling machine embodying my invention. Fig. 2 is a fragmentary view of the same, with a supporter plate removed to disclose certain parts. Fig. 3 is a perspective view of an anvil shown in front end Fig. 2, together with parts which assist in its reciprocation. Fig. 41 is a section taken approximately on line H of Fig. 1. Fig. 5 is a section similar-to Fig. 1, showing a different position of the parts. Fig. 6 is a section taken approximately on line 66 of Fig. 4:.

In Fig. 1 is illustrated a type of stapling head well known in the prior art and having a cammed wheel generally indicated by reference numeral 10, which operates feeding mechanism generally indicated at 11, a cutter 12 (see Fig. 6), a former 18, and a driver 14. In this type of stapling head an anvil is employed, provided with a slotted forward end which receives one or more'wires and which is flattened on its sides to fit within the former 13, which, descending about said flattened sides, bends the wire held in the flattened slotted head of the anvil into staples. Formerly, in this type of stapling head the driver 14 was adapted by its descent to move the anvil backwardly by engagement with a beveled surface upon the upper side of the forward end of the anvil, and to removethe anvil from its path of defreely between the link the channel. y

In the operation of my invention the feedscent, the driver pushing the formedstaple or staples ahead of'it through the work and against a clench block below the work. In my present invention I" show for convenience a stapling head adapted to form and drive a plurality of staples, though my invention is applicable to a machine constructed for the operation of a single staple at a time. In the present inventionreference numeral 15 (seeFigs. 2 to 6'inclusive) indicates gen: erally the anvil of my stapling machine. This anvil is provided at its forward end with a horizontal slot 16, is beveled at ap- V proximately an angle of forty-five degrees, from the vertical uponits forward end and above the slot 16, as at '17, and is rounded oil as at 18 for engagement with a staple sup- I port 19, shown in Figs. 4, 5, and 6. The

frame plate of my invention is indicated at 20, and in this plate is cut an'approxim'ately.

vertical channel 21, within which 1s suspended a link 22, shown in perspective in Fig. 3, inside elevation in Figs. 4 and 5, and partly in cross section and partly in plan view in Fig. 6. At its upper end and upon its forwardface the link 22 is provided witha stop 23, from which extends forwardly a shaft 24: forming a bearing for a roller'25, A. cam

26, formed upon thecammed plate 10, co-

operates with the roller 25 to impart motion to the link 22. The link-is suspended within the channel 21'by means of a" coil spring 27 .(see Figs. 1, 5, and 6), bearing preferably at its upper end a core 38 having a block 39 for engagement with the, stop23. At its lower end the link 22 is bifurcated, forming spaced link leaves 28, each of which is provided withga straight link slot 29, the

link slots 29 registering opposite each other and extending preferably at an angle of forty-fivedegrees from the vertical. The rearward end of the anvil 15 is reduced as at 15 (see Figs. 3 and 6) sufficiently to move leaves 28. A link block passes through the reduced end 15 of the anvil and at each of its ends engages one of the slots 29. The anvil is journaled as at 31 for horizontal reciprocation in the frame plate 20. A guide plate 32 (see Figs. 4, 5, and 6) is fastened to'the rearward surface of the frame plate 20 and spans the channel 21, thus securing the link 22 within ing mechanism generally indicated at 11 feed staple material into the slot 16 of the anvil, following which the former 13 descends about the flattened sides of the anvil, bending the staple material into staples. Upon this formation of the staples the driver 14 begins to descend upon the staples and during its descent contact of the cam 26' with the roller 25 moves the link 22 downwardly from the position shown in Fig. 4 to that shown in Fig. 5, this downward movement of the link being made against the force of the spring 27. As the link moves downwardly the link block 30 is forced backwardly, drawing backward with itthe anvil 15, the anvil retreating a dis-- tance sufficient to clear the path of descent of the driver 14. VThe anvil being thus withdrawn from the path of descent of the driver, the driver passes on, pushing the sta ples before it and setting them into the work. Preferably, the shape of the cam 26 is. such that when the staples have been set into the work by the driver, the cam 26, as it rotates, rises from the position shown in Fig. 5, clearing the roller 25, and allowing the spring 27 to move the link 22 upwardly. This upward movement of the link 22 is momentarily arrested, however, by the driver 14-, which, during its ascent, obstructs the forward movement of the anvil until the lower end of the driver has passed the slot 16, whereupon the spring member 27, by forcing the link 22 upwardly, snaps the anvil forward into the position'shown in Fig. 4. V

In the accompanying drawings and in the foregoing description is set forth the pre ferred embodiment of my invention, but it is Obvious that one skilled in the art may make modifications thereof without departing from the spirit of the invention.

1 claim:

1. In a stapling machine having an anvil and a'driver, the combination of means independent of the driver for moving the anvil comprising a reciprocating link having slots obliquely positioned with relation to the anvil, an extension upon the anvil overlapping said slots, and a link block engaging and movable in said slots and fixed to said extension.

2. In a stapling machine having an anvil and a driver, the combination of means independent of the driver for moving the anvil comprising a link mounted in the machine for vertical reciprocation, a bearing in the machine in which the anvil is mounted for horizontal reciprocation, said link having slots obliquely positioned with respect to the line of desired movement of the anvil, a rearward extension upon the anvil overlapping said slots, and a link block engaging and movable in said slots and fixed to said extension.

3. In a stapling machine, the combination of a frame therefor, a vertically extending channel in said frame, an anvil movably mounted in the frame, a link mova bly positioned for vertical reciprocation in said channel, bifurcated at its lower end, and having oblique slots registering with each other formed in the bifurcations, an extension upon the anvil movable between the bifurcations of the link, a link block engaging and movable in said slots and fixed to said extension, a spring member upon which said link is suspended and normally maintaining the link adjacent the upper end of said channel, and a rotating cam adapted to contact with the link and move it down wardly in said channel against the pressure of the spring'member.

4. The combination with a stapling head, including a former and a driver, and means for imparting a reciprocatory. movement thereto, of an anvil movable across the path of movement of the driver and former aforesaid, and a connection between the means for operating the driver and former and said anvil, comprising a link having oblique slots therein for cooperation with the anvil aforesaid.

5. The combination with a stapling head, including a driver and a former and a cam for imparting a reciprocatory movement thereto, of an anvil mounted for reciprocation across the paths of movement of said driver and said former, and a link operable by said cam, and provided with oblique slots in its lower terminal for engagement with the outer end of said anvil.

6. The combination with a stapling head, including a driver and a former and a cam for reciprocating said driver and said former, of an anvil mounted for reciprocation across the paths of movement of said driver and former, a link block secured transversely in the outer end of said anvil, a link spanning the outer end of said anvil and provided with oblique slots therein in which is received the link block aforesaid, an operative connect-ion between the outer end of said link and the cam aforesaid, and means constantly tending to maintain the said connection.

7. The combination with a stapling head including a former and a driver and means for imparting a reoiprocatory movement thereto, of an anvil movable across the path of movement of said former, and a connection between the means for operating the driver and former and said anvil comprising a link having oblique slots therein for cooperating with the anvil aforesaid.

8. The combination with a stapling head including a former and a driver, and means for imparting a reciprocatory movement thereto, of an anvil movable across the path of movement of the driver and former aforesaid, a connection between the means for name to this specification, in the presence of operating the driver and former and said two subscribing witnesses, on this 5th day of anvil comprising a link having oblique slots May, A. D. 1914.

therein for cooperating with said anvil, and HENRY WEBER. means for moving said link independently Witnesses:

of said former. H. G. ROCKWELL,

In testimony whereof I have signed my CHARLES H. SEEM.

Copies 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

